Which waveform is considered normal and may be seen in relaxed states?

The option identified as correct, "Mittens," does not correspond with established EEG terminology or recognized waveforms. It appears to be a distractor within the question. "Mittens" does not represent any EEG waveform or physiological brain state.

On the other hand, alpha waves are typically associated with relaxed, calm states and are indeed recognized as being normal in such conditions. Alpha waves are prominent when a person is awake but relaxed and often occur when the eyes are closed. They range in frequency from 8 to 12 Hz and are indicative of a state of restfulness or reflection.

To further clarify, delta waves are more common during deep sleep and are not witnessed in the relaxed awake state. Beta waves are associated with active thought and concentration, representing alertness and mental engagement, which contrasts with the relaxed state indicated in the question.

Given this context, the accurate identification of a waveform typical of relaxed states would point towards alpha waves rather than the incorrect choice listed.